Based on the reference group's credit level and perceived value level,this paper designs a 3×2×4simulation experiment,and makes an empirical study on the consumer online purchase decision.The results show that:different credit reference groups have significant positive impact on consumer online purchase decision.The higher the credit level of reference groups are,the influence to consumers purchase decision is more.Different perceived value of the reference group have a positive impact on the network purchase decision of consumer's differe...